Manual
Issue 2, March 2020 Model 381 User Guide
Page 10 Studio Technologies, Inc.
MODEL 381
ON-AIR BELTPACK
also need to be subscribed (routed) with
the desired Dante transmitter (Tx) chan-
nels. These two audio signals will provide a
Model 381 user with their headphone cue
signals.
The Model 381 has a default Dante device
name of ST-M381- and a unique suffix.
The suffix identifies the specific Model 381
that is being configured. The suffix’s actual
alpha and/or numeric characters relate to
the MAC address of the unit’s Ultimo inte-
grated circuit. The two Dante transmitter
(Tx) channels have default names of Main
and Talkback. The two Dante receiver (Rx)
channels have default names of Head-
phone Ch1 and Headphone Ch2. Using
Dante Controller, the default device name
and channel names can be revised as ap-
propriate for the specific application.
The Model 381 supports audio sample rates
of 44.1, 48, 88.2, and 96 kHz. A setting in
Dante Controller is used to configure the
desired sample rate. The Model 381 can
serve as the clock master for a Dante net-
work but in most cases, it will be configured
to “sync” to another device. No clock config-
uration settings associated with the Model
381 will typically require configuration within
Dante Controller.
Model 381 Configuration
The STcontroller software application is
used to configure the way in which the Mod-
el 381 functions. No DIP switch settings or
other local actions are used to configure the
unit. This makes it imperative that STcon-
troller be available for convenient use in a
personal computer that’s connected to the
related LAN.
Installing STcontroller
STcontroller is available free of charge on
the Studio Technologies website (www.
studio-tech.com/stcontroller). STcontroller
versions 1.08.00 and later will fully support
the Model 381. If required, download and in-
stall STcontroller onto a designated personal
computer. This personal computer must be
on the same local area network (LAN) and
subnet as the Model 381 unit or units that
are to be configured. Immediately after start-
ing STcontroller the application will locate the
devices that it can control. The Model 381 unit
or units will appear in the device list. Use the
Identify command to allow easy recognition of
a specific Model 381 unit. Double-clicking on
a device name will cause the associated con-
figuration menu to appear. Review the current
configuration and make changes as required.
Parameters
The configurable functions include:
• P48 phantom power on/off status
• Microphone preamplifier gain
• Headphone output routing and level
control operation
• Sidetone operation and level
• Talkback button operation
• Main output audio source
Changes made using STcontroller will be
immediately reflected in the unit’s operation.
No “reboot” of the Model 381 is required.
Each time a change is made the talkback
button on the top panel will flash orange in
two quick sequences to indicate that a com-
mand from STcontroller has been received.
Microphone Input – P48 Phantom Power
STcontroller allows selection of the on/off
status of the microphone input’s P48 phantom
power source. The on/off status is displayed
by way of an LED, red in color, located on
the bottom panel adjacent to the microphone
input connector. Select the status of the P48
source to meet the needs of the connected
microphone.